./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:38:05,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:38:05,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:38:05,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:38:05,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:38:05,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:38:05,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:38:05,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:38:05,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:38:05,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:38:05,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:38:05,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:38:05,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:38:05,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:38:05,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:38:05,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:38:05,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:38:05,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:38:05,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:38:05,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:38:05,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:38:05,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:38:05,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:38:05,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:38:05,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:38:05,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:38:05,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:38:05,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:38:05,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:38:05,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:38:05,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:38:05,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:38:05,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:38:05,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:38:05,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:38:05,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:38:05,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:38:05,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:38:05,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:38:05,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:38:05,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:38:05,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:38:05,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:38:05,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:38:05,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:38:05,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:38:05,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:38:05,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:38:05,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:38:05,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:38:05,878 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:38:05,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:38:05,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:38:05,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:38:05,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:38:05,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:38:05,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:38:05,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:38:05,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:38:05,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:38:05,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:38:05,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:38:05,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:38:05,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:38:05,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:38:05,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:38:05,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:38:05,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:38:05,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:38:05,888 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:38:05,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:38:05,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:38:05,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:38:05,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-11-13 18:38:06,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:38:06,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:38:06,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:38:06,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:38:06,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:38:06,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-13 18:38:06,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/data/a3ac93099/00b87cfb53414861bfb332584802907d/FLAG7c74a949b [2021-11-13 18:38:07,603 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:38:07,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-13 18:38:07,678 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/data/a3ac93099/00b87cfb53414861bfb332584802907d/FLAG7c74a949b [2021-11-13 18:38:07,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/data/a3ac93099/00b87cfb53414861bfb332584802907d [2021-11-13 18:38:07,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:38:07,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:38:07,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:38:07,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:38:07,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:38:07,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:38:07" (1/1) ... [2021-11-13 18:38:07,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e39c247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:07, skipping insertion in model container [2021-11-13 18:38:07,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:38:07" (1/1) ... [2021-11-13 18:38:07,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:38:08,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:38:11,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-11-13 18:38:11,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:38:11,908 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:38:12,639 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-11-13 18:38:12,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:38:12,807 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:38:12,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12 WrapperNode [2021-11-13 18:38:12,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:38:12,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:38:12,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:38:12,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:38:12,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:38:13,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:38:13,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:38:13,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:38:13,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:13,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:14,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:14,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:14,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:38:14,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:38:14,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:38:14,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:38:14,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (1/1) ... [2021-11-13 18:38:14,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:38:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:38:14,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:38:14,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf6d1f-f2dc-4ea4-92db-006dbc83cb3a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:38:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-11-13 18:38:14,314 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-11-13 18:38:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 18:38:14,314 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 18:38:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-11-13 18:38:14,315 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-11-13 18:38:14,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-13 18:38:14,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-13 18:38:14,315 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-11-13 18:38:14,316 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-11-13 18:38:14,316 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-11-13 18:38:14,316 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-11-13 18:38:14,316 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-13 18:38:14,316 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-13 18:38:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-11-13 18:38:14,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-11-13 18:38:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-11-13 18:38:14,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-11-13 18:38:14,318 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-11-13 18:38:14,318 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-11-13 18:38:14,318 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-11-13 18:38:14,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-11-13 18:38:14,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:38:14,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:38:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-13 18:38:14,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-13 18:38:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-11-13 18:38:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-11-13 18:38:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-11-13 18:38:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-11-13 18:38:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-11-13 18:38:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-11-13 18:38:14,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-11-13 18:38:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-11-13 18:38:14,321 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-11-13 18:38:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-11-13 18:38:14,321 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-11-13 18:38:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-11-13 18:38:14,322 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-11-13 18:38:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-11-13 18:38:14,322 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 18:38:14,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 18:38:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:38:14,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:38:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-11-13 18:38:14,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-11-13 18:38:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-11-13 18:38:14,324 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-11-13 18:38:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-11-13 18:38:14,324 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-11-13 18:38:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 18:38:14,325 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 18:38:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:38:14,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:38:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-11-13 18:38:14,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-11-13 18:38:14,326 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-11-13 18:38:14,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-11-13 18:38:14,326 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-11-13 18:38:14,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-11-13 18:38:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-11-13 18:38:14,327 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-11-13 18:38:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-13 18:38:14,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-13 18:38:14,328 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 18:38:14,328 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 18:38:14,328 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-11-13 18:38:14,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-11-13 18:38:14,329 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-11-13 18:38:14,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-11-13 18:38:14,329 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-11-13 18:38:14,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-11-13 18:38:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-13 18:38:14,330 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-13 18:38:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-13 18:38:14,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-13 18:38:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:38:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-11-13 18:38:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-11-13 18:38:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 18:38:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 18:38:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:38:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-13 18:38:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-13 18:38:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-11-13 18:38:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-11-13 18:38:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-11-13 18:38:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-11-13 18:38:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-11-13 18:38:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-11-13 18:38:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-11-13 18:38:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-11-13 18:38:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:38:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:38:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-13 18:38:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-13 18:38:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-11-13 18:38:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-11-13 18:38:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-11-13 18:38:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-11-13 18:38:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:38:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-11-13 18:38:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-11-13 18:38:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-11-13 18:38:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-11-13 18:38:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:38:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-11-13 18:38:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-11-13 18:38:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-13 18:38:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-13 18:38:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-11-13 18:38:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-11-13 18:38:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-11-13 18:38:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-11-13 18:38:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-13 18:38:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-13 18:38:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 18:38:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 18:38:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-13 18:38:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-13 18:38:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 18:38:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 18:38:14,341 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 18:38:14,341 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 18:38:14,341 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 18:38:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 18:38:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-11-13 18:38:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-11-13 18:38:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-11-13 18:38:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-11-13 18:38:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 18:38:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 18:38:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-11-13 18:38:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-11-13 18:38:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-11-13 18:38:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-11-13 18:38:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-11-13 18:38:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-11-13 18:38:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-11-13 18:38:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-11-13 18:38:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:38:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:38:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-13 18:38:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-13 18:38:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-13 18:38:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-13 18:38:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-11-13 18:38:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-11-13 18:38:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-11-13 18:38:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-11-13 18:38:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-11-13 18:38:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-11-13 18:38:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:38:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-11-13 18:38:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-11-13 18:38:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-11-13 18:38:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-11-13 18:38:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-11-13 18:38:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-11-13 18:38:14,349 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-11-13 18:38:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-11-13 18:38:14,350 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-11-13 18:38:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-11-13 18:38:14,350 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-11-13 18:38:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-11-13 18:38:14,350 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-11-13 18:38:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-11-13 18:38:14,351 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-11-13 18:38:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-11-13 18:38:14,351 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-11-13 18:38:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-11-13 18:38:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-11-13 18:38:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-11-13 18:38:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-11-13 18:38:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-11-13 18:38:14,352 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-11-13 18:38:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-11-13 18:38:14,353 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:38:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:38:14,353 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-11-13 18:38:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-11-13 18:38:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-13 18:38:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-13 18:38:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-11-13 18:38:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-11-13 18:38:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:38:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-11-13 18:38:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-11-13 18:38:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-11-13 18:38:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-11-13 18:38:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-13 18:38:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-13 18:38:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:38:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:38:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-11-13 18:38:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-11-13 18:38:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:38:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-13 18:38:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-13 18:38:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-11-13 18:38:14,358 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-11-13 18:38:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-11-13 18:38:14,358 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-11-13 18:38:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-13 18:38:14,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-13 18:38:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-11-13 18:38:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-11-13 18:38:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-13 18:38:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-13 18:38:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:38:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:38:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:38:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-11-13 18:38:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-11-13 18:38:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-11-13 18:38:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-11-13 18:38:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-11-13 18:38:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-11-13 18:38:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:38:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:38:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-11-13 18:38:14,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-11-13 18:38:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-13 18:38:14,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-13 18:38:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-11-13 18:38:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-11-13 18:38:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:38:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:38:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-11-13 18:38:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-11-13 18:38:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-13 18:38:14,364 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-13 18:38:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 18:38:14,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 18:38:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-11-13 18:38:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-11-13 18:38:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-11-13 18:38:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-11-13 18:38:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-11-13 18:38:14,365 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-11-13 18:38:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-11-13 18:38:14,366 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-11-13 18:38:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-11-13 18:38:14,366 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-11-13 18:38:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-11-13 18:38:14,367 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-11-13 18:38:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-11-13 18:38:14,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-11-13 18:38:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-11-13 18:38:14,367 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-11-13 18:38:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-11-13 18:38:14,368 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-11-13 18:38:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-11-13 18:38:14,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-11-13 18:38:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-11-13 18:38:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-11-13 18:38:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:38:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:38:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-13 18:38:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-13 18:38:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-11-13 18:38:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-11-13 18:38:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-13 18:38:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-13 18:38:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-11-13 18:38:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-11-13 18:38:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-11-13 18:38:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-11-13 18:38:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-13 18:38:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-13 18:38:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 18:38:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 18:38:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-11-13 18:38:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-11-13 18:38:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-11-13 18:38:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-11-13 18:38:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-11-13 18:38:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-11-13 18:38:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:38:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:38:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:38:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-13 18:38:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-13 18:39:54,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:39:54,053 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 18:39:54,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:54 BoogieIcfgContainer [2021-11-13 18:39:54,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:39:54,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:39:54,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:39:54,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:39:54,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:38:07" (1/3) ... [2021-11-13 18:39:54,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d2ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:39:54, skipping insertion in model container [2021-11-13 18:39:54,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:38:12" (2/3) ... [2021-11-13 18:39:54,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d2ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:39:54, skipping insertion in model container [2021-11-13 18:39:54,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:54" (3/3) ... [2021-11-13 18:39:54,073 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-13 18:39:54,080 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:39:54,080 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:39:54,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:39:54,165 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:39:54,165 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:39:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-13 18:39:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 18:39:54,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:54,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:54,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-11-13 18:39:54,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:54,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55669768] [2021-11-13 18:39:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:54,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:55,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:55,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55669768] [2021-11-13 18:39:55,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55669768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:55,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:55,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:39:55,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134838859] [2021-11-13 18:39:55,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:55,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:39:55,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:55,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:39:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:55,917 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:39:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:56,867 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-11-13 18:39:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:39:56,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-13 18:39:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:56,983 INFO L225 Difference]: With dead ends: 9883 [2021-11-13 18:39:56,984 INFO L226 Difference]: Without dead ends: 6563 [2021-11-13 18:39:57,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:57,040 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 306.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 345.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:57,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 73.94ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 345.73ms Time] [2021-11-13 18:39:57,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-11-13 18:39:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-11-13 18:39:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-11-13 18:39:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-11-13 18:39:57,817 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-11-13 18:39:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:57,818 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-11-13 18:39:57,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:39:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-11-13 18:39:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 18:39:57,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:57,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:57,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:39:57,835 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-11-13 18:39:57,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:57,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489587886] [2021-11-13 18:39:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:57,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:58,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:58,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489587886] [2021-11-13 18:39:58,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489587886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:58,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:58,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:39:58,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305858270] [2021-11-13 18:39:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:58,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:39:58,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:58,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:39:58,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:58,674 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:39:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:59,675 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-11-13 18:39:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:39:59,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-13 18:39:59,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:59,849 INFO L225 Difference]: With dead ends: 19597 [2021-11-13 18:39:59,850 INFO L226 Difference]: Without dead ends: 13051 [2021-11-13 18:39:59,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:59,924 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 311.51ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:59,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 44.82ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 311.51ms Time] [2021-11-13 18:39:59,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-11-13 18:40:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-11-13 18:40:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2021-11-13 18:40:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-11-13 18:40:00,925 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-11-13 18:40:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:00,926 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-11-13 18:40:00,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:40:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-11-13 18:40:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 18:40:00,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:00,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:00,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:40:00,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:00,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-11-13 18:40:00,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:00,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045595836] [2021-11-13 18:40:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:00,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:01,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:01,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045595836] [2021-11-13 18:40:01,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045595836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:01,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:01,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:40:01,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331085476] [2021-11-13 18:40:01,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:01,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:40:01,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:40:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:01,901 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:40:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:03,138 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-11-13 18:40:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:40:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-13 18:40:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:03,441 INFO L225 Difference]: With dead ends: 38959 [2021-11-13 18:40:03,442 INFO L226 Difference]: Without dead ends: 25925 [2021-11-13 18:40:03,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:03,570 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 274.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 308.63ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:03,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 43.82ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 308.63ms Time] [2021-11-13 18:40:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-11-13 18:40:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-11-13 18:40:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-13 18:40:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-11-13 18:40:05,370 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-11-13 18:40:05,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:05,370 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-11-13 18:40:05,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:40:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-11-13 18:40:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 18:40:05,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:05,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:05,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:40:05,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-11-13 18:40:05,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:05,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516816834] [2021-11-13 18:40:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:05,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:06,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:06,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516816834] [2021-11-13 18:40:06,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516816834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:06,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:06,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:40:06,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626059218] [2021-11-13 18:40:06,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:06,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:40:06,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:06,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:40:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:40:06,567 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:08,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:10,566 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-11-13 18:40:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:40:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-13 18:40:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:10,746 INFO L225 Difference]: With dead ends: 51854 [2021-11-13 18:40:10,746 INFO L226 Difference]: Without dead ends: 25946 [2021-11-13 18:40:10,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:40:10,892 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2277.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.80ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2597.28ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:10,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 32.80ms Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2597.28ms Time] [2021-11-13 18:40:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-11-13 18:40:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-11-13 18:40:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-13 18:40:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-11-13 18:40:13,142 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-11-13 18:40:13,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:13,143 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-11-13 18:40:13,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-11-13 18:40:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 18:40:13,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:13,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:13,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:40:13,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-11-13 18:40:13,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:13,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450876565] [2021-11-13 18:40:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:13,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:14,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:14,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:14,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450876565] [2021-11-13 18:40:14,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450876565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:14,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:14,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:40:14,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114505398] [2021-11-13 18:40:14,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:14,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:40:14,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:14,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:40:14,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:14,297 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:16,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:17,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:17,845 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-11-13 18:40:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:40:17,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-13 18:40:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:18,045 INFO L225 Difference]: With dead ends: 25916 [2021-11-13 18:40:18,048 INFO L226 Difference]: Without dead ends: 25913 [2021-11-13 18:40:18,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:18,068 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2393.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2780.42ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:18,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 17.79ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2780.42ms Time] [2021-11-13 18:40:18,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-11-13 18:40:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-11-13 18:40:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-13 18:40:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-11-13 18:40:19,865 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-11-13 18:40:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:19,866 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-11-13 18:40:19,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-11-13 18:40:19,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 18:40:19,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:19,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:19,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:40:19,873 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:19,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:19,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-11-13 18:40:19,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:19,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491886481] [2021-11-13 18:40:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:19,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:21,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:21,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491886481] [2021-11-13 18:40:21,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491886481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:21,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:21,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:40:21,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013343246] [2021-11-13 18:40:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:21,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:40:21,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:21,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:40:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:21,024 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:23,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:24,789 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-11-13 18:40:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:40:24,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-13 18:40:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:24,991 INFO L225 Difference]: With dead ends: 25915 [2021-11-13 18:40:24,991 INFO L226 Difference]: Without dead ends: 25912 [2021-11-13 18:40:25,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:25,016 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2665.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3024.25ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:25,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 15.47ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 3024.25ms Time] [2021-11-13 18:40:25,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-11-13 18:40:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-11-13 18:40:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-13 18:40:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-11-13 18:40:27,170 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-11-13 18:40:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:27,171 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-11-13 18:40:27,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-11-13 18:40:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 18:40:27,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:27,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:27,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:40:27,181 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-11-13 18:40:27,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:27,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449448516] [2021-11-13 18:40:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:27,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:28,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:28,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449448516] [2021-11-13 18:40:28,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449448516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:28,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:28,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:40:28,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184920564] [2021-11-13 18:40:28,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:28,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:40:28,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:28,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:40:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:28,181 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:30,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:32,406 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-11-13 18:40:32,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:40:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-13 18:40:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:32,664 INFO L225 Difference]: With dead ends: 40287 [2021-11-13 18:40:32,665 INFO L226 Difference]: Without dead ends: 40283 [2021-11-13 18:40:32,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:32,702 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2583.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.73ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3233.30ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:32,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 22.73ms Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 3233.30ms Time] [2021-11-13 18:40:32,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-11-13 18:40:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-11-13 18:40:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2021-11-13 18:40:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-11-13 18:40:35,469 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-11-13 18:40:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:35,471 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-11-13 18:40:35,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-11-13 18:40:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 18:40:35,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:35,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:35,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:40:35,477 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:35,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-11-13 18:40:35,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:35,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082257476] [2021-11-13 18:40:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:35,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:36,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:36,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:36,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082257476] [2021-11-13 18:40:36,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082257476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:36,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:36,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:40:36,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589020912] [2021-11-13 18:40:36,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:36,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:40:36,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:40:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:36,582 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:38,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:39,777 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-11-13 18:40:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:40:40,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-13 18:40:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:40,856 INFO L225 Difference]: With dead ends: 40283 [2021-11-13 18:40:40,857 INFO L226 Difference]: Without dead ends: 40191 [2021-11-13 18:40:40,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:40:40,897 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2265.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2269.56ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:40,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 9.67ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2269.56ms Time] [2021-11-13 18:40:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-11-13 18:40:42,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-11-13 18:40:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2021-11-13 18:40:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-11-13 18:40:43,281 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-11-13 18:40:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:43,282 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-11-13 18:40:43,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:40:43,283 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-11-13 18:40:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 18:40:43,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:43,314 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:43,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:40:43,315 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:43,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-11-13 18:40:43,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:43,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658362314] [2021-11-13 18:40:43,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:43,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:40:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:40:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 18:40:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:40:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:40:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 18:40:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:40:44,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:44,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658362314] [2021-11-13 18:40:44,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658362314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:44,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:44,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:40:44,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712041874] [2021-11-13 18:40:44,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:44,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:40:44,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:40:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:40:44,829 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:40:47,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:49,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:05,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:05,977 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-11-13 18:41:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:41:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2021-11-13 18:41:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:06,647 INFO L225 Difference]: With dead ends: 108621 [2021-11-13 18:41:06,647 INFO L226 Difference]: Without dead ends: 68433 [2021-11-13 18:41:06,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:06,883 INFO L933 BasicCegarLoop]: 9356 mSDtfsCounter, 5741 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 1853 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15315.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6561 SdHoareTripleChecker+Valid, 18618 SdHoareTripleChecker+Invalid, 4709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 113.58ms SdHoareTripleChecker+Time, 1853 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18318.43ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:06,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6561 Valid, 18618 Invalid, 4709 Unknown, 0 Unchecked, 113.58ms Time], IncrementalHoareTripleChecker [1853 Valid, 2854 Invalid, 2 Unknown, 0 Unchecked, 18318.43ms Time] [2021-11-13 18:41:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-11-13 18:41:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-11-13 18:41:10,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2021-11-13 18:41:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-11-13 18:41:10,839 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-11-13 18:41:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:10,840 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-11-13 18:41:10,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:41:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-11-13 18:41:10,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 18:41:10,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:10,874 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:10,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:41:10,875 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:10,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-11-13 18:41:10,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:10,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305345237] [2021-11-13 18:41:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:10,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:41:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:41:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 18:41:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:41:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:41:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:41:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:12,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:12,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305345237] [2021-11-13 18:41:12,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305345237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:12,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:12,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:41:12,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381125615] [2021-11-13 18:41:12,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:12,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:41:12,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:41:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:41:12,262 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:41:14,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:17,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:35,072 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-11-13 18:41:35,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:41:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2021-11-13 18:41:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:35,704 INFO L225 Difference]: With dead ends: 159432 [2021-11-13 18:41:35,704 INFO L226 Difference]: Without dead ends: 100211 [2021-11-13 18:41:35,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:35,953 INFO L933 BasicCegarLoop]: 9373 mSDtfsCounter, 5726 mSDsluCounter, 9270 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 1845 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15968.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6549 SdHoareTripleChecker+Valid, 18643 SdHoareTripleChecker+Invalid, 4700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 100.79ms SdHoareTripleChecker+Time, 1845 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18786.72ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:35,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6549 Valid, 18643 Invalid, 4700 Unknown, 0 Unchecked, 100.79ms Time], IncrementalHoareTripleChecker [1845 Valid, 2853 Invalid, 2 Unknown, 0 Unchecked, 18786.72ms Time] [2021-11-13 18:41:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-11-13 18:41:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-11-13 18:41:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2021-11-13 18:41:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-11-13 18:41:41,007 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 79 [2021-11-13 18:41:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:41,008 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-11-13 18:41:41,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:41:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-11-13 18:41:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 18:41:41,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:41,039 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:41,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:41:41,040 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:41,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-11-13 18:41:41,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:41,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782562117] [2021-11-13 18:41:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:41,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:41:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:41:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 18:41:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:41:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:41:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-13 18:41:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:42,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:42,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782562117] [2021-11-13 18:41:42,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782562117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:42,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:42,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:41:42,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468654118] [2021-11-13 18:41:42,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:42,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:41:42,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:41:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:41:42,369 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:41:45,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:47,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:42:05,845 INFO L93 Difference]: Finished difference Result 232160 states and 345280 transitions. [2021-11-13 18:42:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:42:05,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-11-13 18:42:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:42:07,038 INFO L225 Difference]: With dead ends: 232160 [2021-11-13 18:42:07,038 INFO L226 Difference]: Without dead ends: 145447 [2021-11-13 18:42:07,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:42:07,389 INFO L933 BasicCegarLoop]: 9378 mSDtfsCounter, 5692 mSDsluCounter, 9220 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 1845 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14867.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6514 SdHoareTripleChecker+Valid, 18598 SdHoareTripleChecker+Invalid, 4702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.11ms SdHoareTripleChecker+Time, 1845 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17637.55ms IncrementalHoareTripleChecker+Time [2021-11-13 18:42:07,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6514 Valid, 18598 Invalid, 4702 Unknown, 0 Unchecked, 82.11ms Time], IncrementalHoareTripleChecker [1845 Valid, 2855 Invalid, 2 Unknown, 0 Unchecked, 17637.55ms Time] [2021-11-13 18:42:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145447 states. [2021-11-13 18:42:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145447 to 125840. [2021-11-13 18:42:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125840 states, 88068 states have (on average 1.3744606440477813) internal successors, (121046), 90491 states have internal predecessors, (121046), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2021-11-13 18:42:14,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125840 states to 125840 states and 185435 transitions. [2021-11-13 18:42:14,085 INFO L78 Accepts]: Start accepts. Automaton has 125840 states and 185435 transitions. Word has length 77 [2021-11-13 18:42:14,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:42:14,086 INFO L470 AbstractCegarLoop]: Abstraction has 125840 states and 185435 transitions. [2021-11-13 18:42:14,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 18:42:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 125840 states and 185435 transitions. [2021-11-13 18:42:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-13 18:42:14,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:42:14,137 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:42:14,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:42:14,138 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:42:14,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:42:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1778842699, now seen corresponding path program 1 times [2021-11-13 18:42:14,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:42:14,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623646793] [2021-11-13 18:42:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:42:14,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:42:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:42:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-13 18:42:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 18:42:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:42:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:42:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:42:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:42:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-13 18:42:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:42:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-13 18:42:15,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:42:15,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623646793] [2021-11-13 18:42:15,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623646793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:42:15,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:42:15,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:42:15,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859638370] [2021-11-13 18:42:15,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:42:15,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:42:15,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:42:15,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:42:15,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:42:15,606 INFO L87 Difference]: Start difference. First operand 125840 states and 185435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:42:17,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:20,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:42:23,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []